Identifying Organic Compounds 2. Purpose/Problem: I am doing this experiment to find out what kind of organic compounds are in test tubes A‚ B‚ C and D. I am curious to know if substance D was the lipid because it seemed thin and had a slightly yellow tint of color to it. 3. Research: In my research I was informed about facts and appearances of lipids. First of all lipids are non-polar compounds‚ thus they won’t dissolve in water. This is also known as being hydrophobic. They are made with one
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CHEMISTRY and ENVIRONMENTAL SCIENCE LABORATORY MANUAL Instructor: Dr. M. Wilson CHEM401: BIOCHEMISTRY for NURSES Prepared by: Oreane Collins CHEMISTRY LABORATORY REGULATIONS AND SAFETY PRECAUTIONS Reference: http://www.sciencebyjones.com/safety_rules.htm Thanks to the Flinn Scientific Safety Rules for much of the below. General Guidelines 1. Conduct yourself in a responsible manner at all times in the laboratory. 2. Be familiar with your lab assignment
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Trends in the Periodic table March 24‚ 2013 Four trends that will be covered: Atomic size Ionization Energy Electronegativity Electron Affinity Each of these has a group trend and a period trend A group trend refers to what is happening with the atom as you travel up or down a column of the periodic table. A period trend refers to what is happening with the atom as you move left or right across a row of the periodic table Atomic Size When discussing an atom’s size‚ usually the
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Most grocery stores now sell food products labeled “organic” due to the increase of demand. Organic food became popular in the 1990’s and has since remained a trend. Although there are more and more supermarkets stocking organic food products on their shelves‚ non-organic food products seem to outnumber the amount of organic food products. Organic food products are labeled with a green and brown sticker that says USDA ORGANIC. When most Americans see this label they think that what they are buying
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protected under the AWA can be abused and tortured. And the law doesn’t require the use of valid alternatives to animals‚ even if they are available. According to the Humane Society‚ registration of a single pesticide requires more than 50 experiments and the use of as many as 12‚ 000 animals. Several cosmetic tests commonly performed on mice‚ rats‚ rabbits‚ and guinea pigs include: skin and eye irritation tests where chemicals are rubbed on shaved skin or dripped into the eyes without any
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A. Water boils at 100°C at sea level. If the water in this experiment did not boil at 100°C‚ what could be the reason? The reason why water did not boil at 100°C could be because we are not at sea level; the pressure could be lower. B. While heating two different samples of water at sea level‚ one boils at 102°C and one boils at 99.2°C. Calculate the percent error for each sample from the theoretical 100.0°C. 1st sample 1.96% error 2nd sample 0.81% error C. An unknown
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If you plan to pursue graduate studies‚ what area of study are you planning to pursue in graduate school? I would like to pursue in organic chemistry‚ specifically the total synthesis of complex products. However‚ I am also interested to know more about physical organic chemistry after learning extended Hückel theory and perturbational molecular orbital theory in my seminar class. Personal Statement Please tell us why you would like to participate in this program. Currently‚ I am conducting
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Synthesis and use of organic compounds is an extremely important area of modern chemistry. Approximately half of all chemists work with organic chemicals. In everyday life‚ many if not most of the chemicals you come in contact with are organic chemicals. Examples include drugs‚ synthetic fabrics‚ paints‚ plastics‚ etc. Synthesis of Aspirin and Methyl Salicylate. The two compounds we will be preparing‚ aspirin (acetylsalicylic acid) and oil of wintergreen (methyl salicylate)‚ are both organic esters. An ester
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Experiment No. 7 HYDROLYSIS AND ANALYSIS OF CARBOHYDRATES Methodology Materials: |1% solutions: | conc. H2SO4 | |glucose‚ fructose‚ maltose‚ sucrose‚ lactose‚ |Molisch reagent | |agar-agar‚ gum arabic‚glycogen‚ cotton‚ |I2 in KI solution (Lugol’s
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the sample you used in each trial (5000 rpm‚ 10000 rpm‚ etc…) in the appropriate columns and the corresponding g-force‚ number of layers‚ and position of layers position results. You will need to use the following formula to assist with your laboratory report: G-force =0 00001118 x radius of centrifuge arm x (rpm)2 The radius of the centrifuge arm for this instrument is 10 cm. Speed | 5000 rpm | 10000 rpm | 15000 rpm | 20000 rpm | G-force | 2795
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